Methods, systems, and apparatus, including computer programs encoded on computer storage media, coordinate dynamic adjustments of a trailer based in part on a user profile associated with a user physically present at the trailer and an activity profile associated with an activity selected to be performed at the trailer. A dynamic adjustment may modify a tilt of a lower surface of the trailer. A dynamic adjustment may modify a dimension(s) of the trailer based in part on a detected object(s). Various dynamic adjustments may occur concurrently, individually and/or sequentially. The trailer may be a moveable trailer for temporary attachment with a vehicle.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, coordinate dynamic adjustments of a trailer based in part on a user profile associated with a user physically present at the trailer and an activity profile associated with an activity selected to be performed at the trailer. A dynamic adjustment may modify a tilt of a lower surface of the trailer. A dynamic adjustment may modify a dimension(s) of the trailer based in part on a detected object(s). Various dynamic adjustments may occur concurrently, individually and/or sequentially. The trailer may be a moveable trailer for temporary attachment with a vehicle.

Disclosed is a golf ball identification system, including at least one pipe for golf balls to move in the pipe, a mechanism for stopping and allowing the golf balls to move in the pipe, the mechanism being arranged between a first closed position and a second open position, and golf ball identification unit arranged in connection with the at least one pipe or the mechanism for identifying a golf ball, a control unit for controlling the latch mechanism between the first closed position and the second open position. Additionally, disclosed is a related golf accuracy device, golf ball feeding device and golf ball sorting device.

A portable sports rack and delivery system including an elongate rack enclosure, and a method of use thereof are provided. The elongate rack enclosure defines a storage space for accommodating balls stacked one above the other. A delivery opening, disposed at a first end of the elongate rack enclosure, receives, accommodates, and delivers an uppermost ball from the storage space. A base member, attached to a second end of the elongate rack enclosure, supports the stacked balls within the storage space. A release component including a compression spring, disposed on an upper surface of the base member, elastically compresses and expands to elevate and release the uppermost ball from the storage space for delivery through the delivery opening. A training component, operably and adjustably coupled to a rear section of the elongate rack enclosure, extends above the first end of the elongate rack enclosure to assist in training a sportsperson.

Embodiments of the disclosure can relate to systems and methods for sorting balls. The systems and methods may involve the use of a ball-feeding mechanism for receiving one or more balls, and feeding the one or more balls to a projection element. The projection element may be located beneath the ball-feeding mechanism such that the balls drop from the ball-feeding mechanism to the projection element, and the balls then project from the projection element to a ball-sorting apparatus. The balls may then subsequently be sorted into a sorting container of one or more sorting containers based on the projected height of the ball.

A golf putter training tool having a putter mounting base on top of an artificial green connected through a slot to a linear putting guide located beneath the artificial green. A golfer engages putter mounting base with a golf club, which is held in place by a friction or interference fit next to or on a sponge-like or rubber-like material. Practice shots made on the tool are constrained to be linear back-and-forth by linear putting guide. This constraint helps the golfer develop muscle memory for correctly aiming a put. Putter mounting base has an alignment guide against which the face of the golf club rests, constraining the face of the golf club square to the ball when the golfer makes the stroke. This constraint helps of golfer develop muscle memory for hitting the ball squarely. The tool has accessories such as a gravity ball feed mechanism.

A control system for regulation balls in a football field and regulation ball support for same is provided. The system has ball supports arranged in a football field, a central control unit and a portable electronic device. Each ball support has presence sensors for detecting a football in a supporting base and data processing means for wirelessly communicating information from the presence sensors to the central control unit. The central control unit monitors the presence of footballs in each ball support and repeatedly sends, wirelessly, the results from the monitoring to the portable electronic device, which graphically shows on a screen the presence or absence of footballs in the corresponding ball supports.

A ball lifting device of the present disclosure, which employs a spiral ball transporting method for smoothly moving a ball, can move along a free path, is easy to be installed and operated, and has excellent durability and strength. The ball lifting device can be installed indoors as well as outdoors for educational, entertainment or viewing purposes. The ball lifting device can quickly move inflated balls filled with air used in ball games, and can be installed in connection with sports facilities as an automatic ball supply system.

A basketball training apparatus includes a shot completion sensor, a condition sensor, and a computer. The shot completion sensor determines whether a shot goes through a basketball hoop. The condition sensor senses a physical condition of a basketball shooter. The computer is in communication with the shot completion sensor and the condition sensor, and has a processor for calculating shot completion percentage as a function of the physical condition.

The present invention proposes a court, which is a half- or full-court in which ball sports, such as soccer (penalty kicks), foot volleyball, volleyball, and basketball (3×3 basketball), can be played. The court allows balls to be automatically and rapidly supplied in the case where it takes time to resume a game, such as a case where a game is replayed or a case where a ball is out according to the characteristics of each type of sport, or in the case where serve-reception practice is required, and also allows balls to be naturally collected and lifted because the court is inclined and allows the balls to be automatically classified according to the types of balls and to be supplied to the court.